Process of making sound-records.



G. E/EIVIERSON, D ECD. .(2. D. EMERSON, ADMINISTRATOR. PROCESS 0F MAKING SOUND RECORDS.

I AFPLCATION FILED JUNE 5,1913. www@ Patented May 16, 1916.

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GERGE lili. EMERSN, F NEWARK, NEW JERSEY; CLYDE D. EMERSON, DMNISTRA- T?? OF GELGE E. EMERSON, DECEASED, ASSIGNOR. BY MESNE ASSIGN l Tf1' JETS, `T) @MER-50N PHGNOGRAPH COMPANY, NC., 0F NEW YORK, N. Y., A COB- TLOGESS Ol? MAKING SOUND-RECORDS.

oit' Making timxml-lteeordsf nt' which thev following is a specification.

This invention relates to soundI records Iand the process for makingF the same.

llerctotore sound records, commonly designated as disk records, were made by press ing a heated matrix having;1 record lines or midulations, with aheated thermoplastir ma Y terial, by means of a hydrauliepress. Both i, the matrix and material with this old proeeti ess must be in a heated condition when pressed together, an(A utter the record lines or undulations are impressed in the plastic material, the matrix is cooled to separate it from said material. This old process is slow in eon'iparison with 'the steps ot my new process and not as eticient.

l The present invention consists essentially in treating a record material to obtain a solution and mixture, which is spread over a matrix.' rlhe fluid portion of the solution and mixture-isv then evaporated, to deposit the record ma erial on the record surface oit the nuntrix. 1li. base is then :taken and printed upon by the coated record sunfaee,A to

.transpose the sui-face of reeord material upon the base. The steps of the process are praetically similar to the steps in the printing art., produeing a sound record which is cheap in first sost, on account of the small amount of .record material required and the'tim'e save/t in its production. The new sound reeord `is streitig, durable and an etlicient sound reproducen The invention is pictoriaily represented .in the accompanyingdrawin, in which- Figure 1 represents a pan with a solution Aand'mixture of record material.' Fig. 2 rep.-

resents a sectional 'View of a matrix preterably of copper with a raised record surface loeated upon a support, and a spreading or inliing roller, Fin: 8 sho\ 1s an enlarged fragmentary section of the matrix after having been coated with 'the 4solution and mixture and Fig. l'ilepresents a section of a finished y l v sound record lying.' upon a support.

fe yefeeroplrfy the new process and the Specification of Letters atent.

rai-@urea nay io, une.

Application ledjlune 5,1913. SerialNo. 771,793.

sound 'records produced thereby, a shellacl like record material is treated with alcohol in a pan 10 to obtain a solution and mixture 11. r[he solution and mixture is spread 0n` the raised. record line 12 of a preferably copper matrix 13 by means of, a roller 14. The matrix may be warmed while being coated with the vsolution andmixturc, the i operation being similar to the inkingof type. The. matrix is then varmed to a slightly higher degree to evaporate the Huid ot' the solution and mixture, thereby leaying the thermoplastic record material 15 inthe reieord surface-12 ot' the matrix. depositing a coating" which l term a dry ink. The warm infnr of the matrix is then continued until the record material becomes sot't. The ma A trix with the record material is then pressed' against a base 1G of suitable material, which latter may be metal, paper, celluloid, wood, cloth, leather, ete. '.lfhe paper may or may `not be coveredwith a sizing, Asuch as shellac or rosin. 'The record .materialwill"adhere to thebase, and if paper is used will adhere to the fibers ot' the latter. Next the matrix is cooled when the record material' `will sep. arate therefrom andbe found secured td the baseer paper. The deposited recordv material on the paper is an exact and true transposition of the sound record surface 'of the matrix.

The paper o1' other base upon which the record materialy is deposited is preferably maintained cold by lying.: upon a cold support 20, that will chill the record material upon the matrix, as it is transmitted therefrom 'to the paper, and permits the relatively instantaneous deposit of the record material upon the'base or paper.

Having described my invention what l desire to secure by Letters Patent and claim is:

1. The process of making a sound record consisting in treating a record material to produce a solution and mixture, coating a sound record matrix surfacer-With the s0- lution and mixture, evaporating the solvent of the solution and mixture'to deposit the residue thereof on the sound record surface and transposing the residue to a. base.

2. The.- process of making a sound record consisting in treating a record material to produce a solutionvand mixture, coating a 'orating the solution and sound record surface of a matrix with the solution and mixture, i. faporating the solvent on the sound record surface and thereb v leaving the record material on the said record surface of the matrix, softening the material on the record surface and then transposing the said material to a base.

3. The process ot' making a sound record consisting in treating a record material to produce a solution and mixture, coating the sound 4record, surface of a matrix with the solution and mixture. evaporating the solven*J on the sound record surface, softening the material located upon the sound record surt'ace and then pressing the matrix with its deposited record material with a base to transpose the surt'ace ot' record material upon said base.

4. The process of making a sound record consisting in treating a record material with a fluid to form a solution and mixture, coatingr the sound record surt'aceot' a matrix with the solution and mixture slightly warming the matrix to evaporate the fluid ot the leaving the residue ot' theA solution and mixture. on the sound record surt'ace otl the matrix, slightly further warming the matrix to evaporate the liuid of the record material on the record surface and then pressing the deposited record material upon a base.

The process ot' making a sound record consisting in treating z record material to produce a solution and mixture, coating the sound record surface ot' a matrix with the solution and mixture, evaporating the sollition and mixture on the sound record sur- .tace to deposit the residue on the sound record surtace. softening the residue and transposing it to a hase and hardening the product.

The process of making a sound record consisting in treating a record material with a fluid to produce a solutionl and mixture, coating the sound record surface ot' a matrix with the solution and mixture, evapmixture on the sound record surlace to deposit the residue thereon, softening the residue by slightly solution and mixture, and thereh)v warming the same. andthen printing the' record surface of record material on a base.

7. The process ot',making a sound record consisting in treating a shellac like material to form a solution and mixture, coating the sound record surface of a matrix with the solution and mixture. evaporating the'solution and mixture on the sound record surface 'to deposit the residue thereon, slightly4 warming the residue to soften' the same and then transposing it upon a base, thereby l,t'orn'iing with the residue an'exact transposition ot' the sound record surface of the matrix upon the base.

8. The process ot making a sound record consisting vin treating shellac like material with aluid to toi-m a solution and mixture, coating a warmed matrix with the solution and mixture in a manner similar t0 spreading ink on type` evaporating the solvent from the coating by slightly further warming the matrix to deposit the residue of the solution and mixture on the soundvrecord surface ot' the matrix, slightly warming the residue to soften the same, and printing the residue upon paper. thereby forming an exact transposition ot' the sound record surface otI the matrix upon the paper.

S). .lhe process ot' making a sound record consisting in treating a shellac like material with alcohol to t'orm a solution and mixture, coating a warmed matrix having a raised record surt'ace vwith the solution and mixture in a manner similar to spreading ink on type. evaluirating the solvent from the coating bv slightly further vwarming the matrix to deposit the residue ot the solution and mixture on the sound record surface ot' the matrix. slightly warming the' residue to soften the same, printing the record inaterial upon a base located upon a cold support to separate the lecord material from the matrix and deposit it upon the base.

l Signed at the borough of Manhattan. in the count)Y ot' New York and State ot New York thisI 26th da v ot May-A. D. 1913,

GEORGE E. EMERSON. 'ituesscs: A

luimr Mfumsonx, .llxiuiy L. Mamma. 

